CN202591496U - External thread forming die of pipe thread forming machine - Google Patents
External thread forming die of pipe thread forming machine Download PDFInfo
- Publication number
- CN202591496U CN202591496U CN2012202732053U CN201220273205U CN202591496U CN 202591496 U CN202591496 U CN 202591496U CN 2012202732053 U CN2012202732053 U CN 2012202732053U CN 201220273205 U CN201220273205 U CN 201220273205U CN 202591496 U CN202591496 U CN 202591496U
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- thread forming
- support frame
- catch
- tubing
- forming machine
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Abstract
The utility model discloses an external thread forming die of a pipe thread forming machine. The external thread forming die comprises a forming sleeve, a support frame sleeved on the forming sleeve and a thread forming piece and is characterized in that a blocking sheet is arranged on the front end face of the support frame; the blocking sheet is provided with a hollow hole corresponding to the inlet end of the forming sleeve; one or three radial chutes are uniformly formed on the circumferential surface of the support frame; a wedge-shaped sliding block of which the top surface is higher than each chute and which slides along each chute is arranged in each chute; a rotary supporting sleeve is connected to the rear end of the support frame; a movable outer sleeve is arranged outside the support frame; the front end of the movable outer sleeve is provided with an inner inclined plane pressing against the top surface of the siding block; the thread forming piece is connected with the sliding block into a whole; and a transmission gear is arranged on the rotary supporting sleeve. Through the forming die, the thread depth can be adjusted, and the problems that the performance of pipes declines and the pipes are easy to break due to over high torsion and over concentrated stress in the forming mode of 'die immobility and pipe rotation' in the conventional thread forming die are solved.
Description
Technical field
The utility model relates to thread forming mechanism, particularly a kind of tubing thread forming machine external screw thread mould.
Background technology
The external screw thread mould of existing spiral forming machine is by becoming jacket, the bracing frame that moulding puts, the thread forming spare (contact pilotage) on the bracing frame to form; Tubing is located at into the shaft core position of jacket, and contact pilotage syringe needle position is passed the through hole that moulding puts and leaned on outer pipe wall.Add man-hour, the tubing rotation, mould moves along the pipe length direction, and contact pilotage forms screw thread on tube wall.Such processing mode is disadvantageous for cold worked tubing, and under the identical torsional moment, self reverses tubing, and torsion is very big, and stress is concentrated and caused tube brakes easily; In addition, contact pilotage is constant, nonadjustable to the control of the depth of thread of tubing, can only form the tubing with a kind of depth of thread.
Summary of the invention
The utility model technical problem to be solved provides a kind of tubing thread forming machine external screw thread mould that can adjust the depth of thread, has solved the tubing that molding mode caused of existing thread forming mould " mould is motionless, tubing rotation " because torsion is excessive, stress is too concentrated the problem that causes the pipe performance to reduce, be easy to rupture.
The technical scheme of the utility model is:
This tubing thread forming machine external screw thread mould comprises into jacket, is set in the bracing frame that moulding puts; Thread forming spare; Its special character is: the support frame as described above front end face is provided with catch, and said catch is provided with the hollow hole of the arrival end of corresponding said one-tenth jacket, and the support frame as described above side face evenly is provided with one or three radial grooves; The wedge block that end face exceeds chute and slides along chute is set in the said chute; The support frame as described above rear end is connected with the rotation support set, and the support frame as described above outside is provided with moving sleeve, and said moving sleeve front end is provided with the interior inclined-plane that presses said slide block end face; Said thread forming spare connects as one with slide block, and said rotation support set is provided with travelling gear.
The axial line of support frame as described above becomes the axial line of jacket to overlap with said.
Said moving sleeve is provided with stirs groove.
Said thread forming spare is a contact pilotage, and the backshank end and the said slide block bottom surface of said contact pilotage are affixed, and the syringe needle that said moulding puts corresponding said contact pilotage is provided with through hole.
Said thread forming spare is three running rollers, is symmetricly set on said catch front end face, and the rolling axle of said running roller passes said catch respectively and links to each other with corresponding said slide block side, and the radially strip hole of corresponding said rolling axle is set on the said catch.
Said thread forming spare is a running roller and two bearings; Be symmetricly set on said catch front end face; The rolling axle of said running roller passes said catch respectively with bearing shaft and links to each other with corresponding said slide block side, and the radially strip hole of corresponding said rolling axle and bearing shaft is set respectively on the said catch.
Said running roller equates with the radius of bearing, so that tubing is tightened up processing.
The beneficial effect of the utility model is:
1, the rotation support set rotate under the external force transmission, drives bracing frame, catch, the rotation of one-tenth jacket, so the drive slide block and on thread forming spare (contact pilotage or running roller) rotate, under the motionless situation of tubing, on tubing, form external screw thread.Changed the molding mode of existing thread forming mould assembly " mould is motionless, tubing rotation ", and then solved tubing because torsion is excessive, stress is too concentrated the problem that causes the pipe performance to reduce, be easy to rupture.
2, slide block and thread forming spare are connected as a single entity; The Position Control that the interior inclined-plane of moving sleeve front end presses the slide block end face the displacement of the relative moulding cover of thread forming spare axial line; And then the control thread forming degree of depth, make the thread forming depth-adjustment, be fit to the production requirement of multiple tubing.
3, the installation of contact pilotage, running roller, bearing, easy to loading and unloading is convenient to safeguard.
Description of drawings
Fig. 1 is the structural representation (corresponding embodiment 1) of the utility model;
Fig. 2 is the structural representation (corresponding embodiment 2) of the utility model;
Fig. 3 is the cutaway view of Fig. 2;
Fig. 4 is the structural representation that removes running roller among Fig. 2;
Fig. 5 is the structural representation (corresponding embodiment 3) of the utility model.
Among the figure: become jacket 1, catch 2, slide block 3, bracing frame 4, moving sleeve 5, rotation support set 6, travelling gear 7, contact pilotage 8, chute 9, through hole 10, interior inclined-plane 11, stir groove 12, running roller 13, bearing 14, radially strip hole 15, tubing 16, rolling axle 17, fixed axis 18.
The specific embodiment
Embodiment 1
As shown in Figure 1; This tubing thread forming machine external screw thread mould comprises into jacket 1, is set in into bracing frame 4, thread forming spare on the jacket 1, and the axial line of bracing frame 4 overlaps with the axial line that becomes jacket 1; Its front end face is provided with catch 2; The arrival end of catch 2 corresponding one-tenth jackets 1 is provided with hollow hole, and bracing frame 4 rear ends are fixedly connected with rotation support set 6, and rotation support set 6 is provided with travelling gear 7.Bracing frame 4 side faces evenly are provided with a radial groove 9, and the wedge block 3 that end face exceeds chute 9 and slides along chute 9 is set in the chute 9, and rotation support set 6 outsides are set with moving sleeve 5.Moving sleeve 5 is provided with stirs groove 12, and moving sleeve 5 front ends are provided with the interior inclined-plane 11 that presses slide block 3 end faces.Thread forming spare connects as one with slide block 3, and thread forming spare is a contact pilotage 8 in the present embodiment, and the backshank end and slide block 3 bottom surfaces of contact pilotage 8 are affixed, becomes the syringe needle of corresponding contact pilotage 8 on the jacket 1 to be provided with through hole 10.
During use; The rotation support set 6 of this mould is set on the fixed axis 18 of tubing thread forming machine head installation; When moving sleeve 5 receives external force to front slide; Inclined-plane 11 compressing slide blocks, 3 end faces make slide block 3 move to one-tenth jacket 1 center along the chute on the bracing frame 49 in its front end, stop when by the time presetting depth of thread position, and the contact pilotage 8 of slide block 3 bottoms is pressed against on tubing 16 outer walls that are provided with in the jacket 1 through becoming the through hole 10 on the jacket 1; Rotate when travelling gear 7 receives external force, driven rotary support set 6 rotates around fixed axis, and then the entire die rotation, and then contact pilotage 8 forms one start screw on tubing 16.This molding mode can reduce the required torsion of moulding, thereby reduces tubing owing to the stress that cold deformation forms is concentrated, and improves pipe performance.
Like Fig. 2, Fig. 3, shown in Figure 4; Bracing frame 4 side faces evenly are provided with three radial grooves 9 in the present embodiment; The wedge block 3 that end face exceeds chute 9 and slides along chute 9 is set in the chute 9, and thread forming spare is three running rollers 13, and corresponding slide block 3 positions are 120 o angles and are symmetricly set on catch 2 front end faces; The rolling axle 17 of three running rollers 13 passes catch 2 respectively and links to each other with corresponding slide block 3 sides, and catch 2 respective roller wheel shafts 17 are provided with radially strip hole 15.Other are with embodiment 1.
During use; The rotation support set 6 of this mould is set on the fixed axis of tubing thread forming machine head installation; When moving sleeve 5 receives external force to front slide, inclined-plane three slide block 3 end faces of 11 compressings make slide block 3 gather to becoming jacket 1 center to move along the chute on the bracing frame 49 in its front end, and the running roller 13 that links to each other with slide block 3 sides tightens up to the tubing 16 of one-tenth jacket 1 arrival end thereupon to be gathered; By the time stop when presetting depth of thread position, the side face of three running rollers 13 presses tubing 16 outer walls; Rotate when travelling gear 7 receives external force, driven rotary support set 6 rotates around fixed axis, and then the entire die rotation, and then running roller 13 forms three-start screw on tubing 16.This molding mode makes the thread forming spare and the relative motion of tubing become rolling friction by original sliding friction, thereby reduces tubing owing to the stress that cold deformation forms is concentrated, and improves pipe performance.
As shown in Figure 5; Bracing frame 4 side faces evenly are provided with three radial grooves 9 in the present embodiment; The wedge block 3 that end face exceeds chute 9 and slides along chute 9 is set in the chute 9; Thread forming spare is a running roller 13 and two bearings 14, and corresponding slide block 3 is 120 o angles and is symmetricly set on catch 2 front end faces, and running roller 13 equates with the radius of bearing 14; The axle of the rolling axle 17 of running roller 13 and bearing 14 passes catch 2 respectively and links to each other with corresponding slide block 3 sides, and the axle of catch 2 respective roller wheel shafts and bearing is provided with radially strip hole 15.Other are with embodiment 1.
During use; The rotation support set 6 of this mould is set on the fixed axis 18 of tubing thread forming machine head installation; When moving sleeve 5 receives external force to front slide; Inclined-plane three slide block 3 end faces of 11 compressings make slide block 3 gather to becoming jacket 1 center to move along the chute on the bracing frame 49 in its front end; The running roller 13 that links to each other with slide block 3 sides tightens up to the tubing 16 that becomes jacket 1 arrival end with bearing 14 thereupon to be gathered, and stops when by the time presetting depth of thread position, and the side face of running roller 13 and bearing 14 presses tubing 16 outer walls; Rotate when travelling gear 7 receives external force, driven rotary support set 6 rotates around fixed axis, and then the entire die rotation, and then running roller 13 forms one start screw on tubing 16.This molding mode makes the thread forming spare and the relative motion of tubing become rolling friction by original sliding friction too, thereby reduces tubing owing to the stress that cold deformation forms is concentrated, and improves pipe performance.
Claims (7)
1. a tubing thread forming machine external screw thread mould comprises into jacket, is set in the bracing frame that moulding puts; Thread forming spare; It is characterized in that: the support frame as described above front end face is provided with catch, and said catch is provided with the hollow hole of the arrival end of corresponding said one-tenth jacket, and the support frame as described above side face evenly is provided with one or three radial grooves; The wedge block that end face exceeds chute and slides along chute is set in the said chute; The support frame as described above rear end is connected with the rotation support set, and the support frame as described above outside is provided with moving sleeve, and said moving sleeve front end is provided with the interior inclined-plane that presses said slide block end face; Said thread forming spare connects as one with slide block, and said rotation support set is provided with travelling gear.
2. tubing thread forming machine external screw thread mould according to claim 1 is characterized in that: the axial line of support frame as described above becomes the axial line of jacket to overlap with said.
3. tubing thread forming machine external screw thread mould according to claim 1 is characterized in that: said moving sleeve is provided with stirs groove.
4. tubing thread forming machine external screw thread mould according to claim 1, it is characterized in that: said thread forming spare is a contact pilotage, and the backshank end and the said slide block bottom surface of said contact pilotage are affixed, and the syringe needle that said moulding puts corresponding said contact pilotage is provided with through hole.
5. tubing thread forming machine external screw thread mould according to claim 1; It is characterized in that: said thread forming spare is three running rollers; Be symmetricly set on said catch front end face; The rolling axle of said running roller passes said catch respectively and links to each other with corresponding said slide block side, and the radially strip hole of corresponding said rolling axle is set on the said catch.
6. tubing thread forming machine external screw thread mould according to claim 1; It is characterized in that: said thread forming spare is a running roller and two bearings; Be symmetricly set on said catch front end face; The rolling axle of said running roller passes said catch respectively with bearing shaft and links to each other with corresponding said slide block side, and the radially strip hole of corresponding said rolling axle and bearing shaft is set respectively on the said catch.
7. tubing thread forming machine external screw thread mould according to claim 6, it is characterized in that: said running roller equates with the radius of bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202732053U CN202591496U (en) | 2012-06-12 | 2012-06-12 | External thread forming die of pipe thread forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202732053U CN202591496U (en) | 2012-06-12 | 2012-06-12 | External thread forming die of pipe thread forming machine |
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| Publication Number | Publication Date |
|---|---|
| CN202591496U true CN202591496U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202732053U Expired - Fee Related CN202591496U (en) | 2012-06-12 | 2012-06-12 | External thread forming die of pipe thread forming machine |
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| Country | Link |
|---|---|
| CN (1) | CN202591496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517815A (en) * | 2020-11-18 | 2021-03-19 | 湖北立晋钢铁集团有限公司 | Twisted steel production device |
-
2012
- 2012-06-12 CN CN2012202732053U patent/CN202591496U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517815A (en) * | 2020-11-18 | 2021-03-19 | 湖北立晋钢铁集团有限公司 | Twisted steel production device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20150612 |
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| EXPY | Termination of patent right or utility model |